ESPE Abstracts

Background: Silent corticotroph adenomas are adenomas composed of corticotrophs but are different from corticotroph adenomas. Despite being silent, they show more aggressive behavior than other clinically nonfunctional adenomas. Adrenocortical choristomas in silent corticotroph adenomas (i.e. the presence of adrenocortical cells in the heterotopic location of the sella) were reported in three patients 16 years or older until now.Objective: Here we report...

Background: Turner syndrome (TS) is associated with increased arterial stiffness. To date, factors associated with the ontogeny of Turner arteriopathy remain unclear.Objective and hypotheses: To assess the associations of vascular biomarkers and the somatotrophic axis with arterial stiffness indices, and left heart size, in normotensive ‘dipper’ TS.Method: Sixty-one patients with uncomplicated normotentensive &#1...

Background-Aim: Gene rearrangements between CYP21A2, TNXB and their homologous pseudogenes (CYP21A1P,TNXA) result in chimeric genes, responsible for the CAHX syndrome. CAHX patients show CAH and Ehlers-Danlos syndrome (EDS) symptoms. Three CAHX chimeras with different clinical severity are described: CH1 (including 120bp deletion in exon 35), CH2 and CH3. The small size and few series reported so far warrant further studies ...

Background: Hyponatremia is defined as a serum sodium level below 135 mEq/l. It is associated with increased morbidity and mortality. Hyponatremia has many causes and can be classified as acute/chronic or hypo/hypo/euvolemic. The main rule in fluid and electrolyte disorders (and especially in hyponatremia) is excluding hypothyroidism and hypocortisolism and then making the correct diagnosis. Hypothyroidism and hypocorticolism can also cause euvolemic chronic hyponatremia but t...

Background and Aims: MicroRNAs play important regulatory roles in cholesterol homeostasis and endothelial dysfunction. The aim of present study was to characterize the expression of miRNAs in overweight/obese adolescents and to identify the possible correlation with metabolic profile and inflammatory biomarkers.Methods: 79 overweight and obese adolescents aged 13.0±2.0 years and 28 normal weight adolescents aged 13....

Background: Medulloblastoma is the most common malignant pediatric brain tumor. Although survival has improved with oncological therapy, late effects such as endocrine consequences are common, especially growth failure and thyroid dysfunction.Methods: Children diagnosed with medulloblastoma in a pediatric hospital between 2004 and 2014 were studied and followed until 2019. Statistical analysis was performed to estimate t...

Background: Infants with Prader-Willi syndrome (PWS) exhibit stunted growth. However, little is known about the role of genes expressed from the imprinted PWS domain in healthy infants. This study aimed to analyze the relative gene expression of the SNURF-SNRPN/UBE3A cluster in the imprinted PWS domain in umbilical cord tissue, and its potential association with prenatal and postnatal growth in apparently healthy infants.Methods:...

Background: Genetic causes of central precocious puberty (CPP) has been increasingly recognized, extending our knowledge of the triggering factors of human pubertal timing. Distinct etiologies remain to be elucidated in sporadic and familial cases. Methyl-CpG-binding protein 2 (MECP2) is a chromatin-associated protein that can activate or repress gene transcription, playing a role in neuronal maturation. It is encoded by MECP2 gene located at chromoso...

Introduction: Subclinical hypothyroidism (SH) is a biochemical condition characterized by serum levels of TSH above the reference range upper limit (4,5μUI/mL), with normal concentrations of thyroid hormones. In cases of non-autoimmune subclinical hypothyroidism (NASHT), genetic defects have been described and can determine disorders in the biosynthesis process of thyroid hormones, such as heterozygous mutations in the TSH receptor gene (TSHR) and ...

Though up to fourteen different MODY subtypes have been so far described, there are no studies in the literature which have determined their actual frequency and prevalence in pediatric patients.Objectives: To identify the underlying molecular basis in a cohort of pediatric patients with a suspected clinical diagnosis of MODY by targeted NGS.Materials/Methods: Cohort of 60 patient fulfilling MODY c...